Chemical Bonding
• List the three types of bonds
• List the substances that compose the three types of bonds
• Draw the Lewis Dot Structure, Molecular Geometry, and identify the
bond angle for CH4
Covalent Bonding
• Draw a rough sketch of a Periodic Table and identify with arrows the
direction of increasing trend for electronegativity and atomic radius.
• Which element has the highest electronegativity and atomic radius
and the lowest electronegativity and atomic radius?
• Explain in your own words the relationship between electronegativity,
atomic radius, and the ability atoms to bond with other atoms.
What is it?
• Resonance
• Polarity
• Dipole Moment
Poster Slide One (1 if 2)
• Choose one of the following compounds: H2O, NH3
• Draw either a ball-and-stick or space-filling model for your molecule
Poster Slide 2
• Calculate the delta electronegativity for the bonds in your molecule.
• Label the delta EN on your drawing and label if it is polar or non-polar.
• If your molecule has polar bonds, label the partial positive and the
partial negative atoms.
• Even though the bonds within your compound are polar or non-polar,
the molecule itself may be the opposite in polarity. What is the
polarity of your overall molecule – polar or non-polar?
• Does your compound have resonance structures?